You're taking shots you shouldn't be. And forest really isn't at its best right now. Especially when the sun is shining. Sparse leaves and sun combine for very high contrasting scenes. Very demanding shooting situations. You normally need some canopies to disperse the light when sun is out. You should be shooting meadows right now. Judging from the undergrowth, It'll take at least few weeks for greens to penetrate forest. Go back when all is green, improve your composition, and get a circ polarizing filter to help with high contrasting scenes, they do wonders with leaves of any kind. Also, go there midday, evening sun isn't very good for shooting in the forests because it's giving even harsher shadows, and ugly sun. It's different when you're shooting at the forest from longer ranges.
Exposure bracketing, fog, mist, rain, snow, panoramas, pathways, everything helps... Focus on details, flowers, leaves, trunk parts, look for cedars and bokehwhore. Closeup and macro in your conditions should work well, though.